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Elements Of Remote Sensing

Elements Of Remote Sensing
The normal altitude of GPS satellite is about

24,400 km
20,200 km
16,200 km
36,100 km

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Elements Of Remote Sensing
The basic requirement of any sensor system is:

Spectral resolution
All of these
Spatial resolution
Radiometric resolution

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Elements Of Remote Sensing
While propagating through homogeneous, isotropic media,

Directions of both the fields are orthogonal
Both the fields are at right angles to the direction of propagation
Both (A) and (B)
Neither (A) nor (B)

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Elements Of Remote Sensing
The most widely used antenna in GPS is

Parabolic antenna
Horn antenna
Slotted antenna
Microstrip antenna

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Elements Of Remote Sensing
Consider the following statements regarding the satellite imaging:
1. The satellite orbit is fixed in the inertial space
2. During successive across-track imaging, the earth rotates beneath the sensor
3. The satellite images a skewed area
Which one of the following statements is/are correct?

2, 3
1, 2, 3
1, 3
1, 2

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Elements Of Remote Sensing
The optical property of a water body depends on:

Absorption by the dissolved material
Scattering by the suspended particulate matter
All of these
Absorption by the suspended particulate matter

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